Appalling Customer Service received by MANAGER

I'm a very loyal and regular customer to Pick n Pay Greenfields or should I say that was before tonight's experience. They advertise the price tag incorrectly and when you get to the till its 4 times more than advertised above the item! Speaking to the "SO CALLED MANAGER" was a waste of time and he definitely needs to go for Customer Service Training. I will no longer purchase there so you have just lost a good customer and I will not be recommending shopping at that branch or giving any positive reviews in future. Totally disgusted and disappointed with the service I received when all I have ever done was give them 5 star reviews.